Spring support



Feb. 19, 1929.

S. P. BUSH SPRING SUPPORT Original Ffled Sept. 28, 1925 2 Sheets-Sheet 1flor muy J' Feb. 19, 1929. 1,703,058

f S. P. BUSH SPRING SUPPORT Original Filed Sept. 28, 1925 2 Sheets-Sheet2 gin/vento@ Patented F eb.V 1 9, A

UNITED STATES Y 1,103,058 PATENT OFFICE.

SAMUEL P. BUSH, 0F COLUMBUS, OHIO, ASSIGNOR T0 THE BUCKEYE STEELCASTINGS COMPANY, 0F COLUMBUS, OHIO. y

SPRING SUPPORT.

Original application led September 28, 1925, Seria1No.v59,168r. PatentN-o. 1,656,166, dated January 17,

1928. Divided and this application iled May 29, 1926. Serial No.112,576.

This application is a division of an application Serial No. -59,168/iledby me September 28th, 1925, now Patent No. 1,656,166, granted January17, 1928, the object of t-he present invention being to provlde aconstruction which will permit the side frame to be removed as a unitWithout materially disturbing the spring plank, springs and bolster inrelation to each other, thereby reducing the cost of changing wheels asWell as the period during which the equipment is out of service. Theinvention is illustrated in the accompanyingl drawings and consists incertain novel features which will be hereinafter first fully describedand then more particularly pointed out in the appended claims.

In the drawings;

Figure 1 is a plan View of a portion of a car truck embodying theinvention,

Figure 2 is a side view ofthev same, f

Figure 3 is a central transverse section,

Figure 4 is a detail of a key or removable stop lug.

The side frame 1 is shown with integral journal boxes although thejournal boxes need not be integral. The side frame has vertical columnswhich define a central opening 3 to receive the end of the bolster 4 andthe springs 5 upon which the bolster end rests. Inthe bottom 6 of theside frame is a pocket 7, and the end of the spring plank 8' lugs orflanges 13 thereon, the interfitting en# gagement of the several angesminimizing the effects ofthe stress on the bend of the spring plank. v

The weight of the spring is carried by the spring seat which, extendingover the end of the spring plank, holds the plank firmly in place. As aloaded car sways from side to side over uneven track, there is anunequal distribution4 of pressure upon the opposite ends of the group ofsprings when the bolster is tilted under aheavy side bearing `load orthe saddle constituting a fulcrum or pivotal support about which theangularit-y of the bolster will freely accommodate itself.

At the top of the central opening 3 in the side frame, in the sidesthereof, are grooves or reentrant recesses 17 which permit the frame tobe assed over the end of the bolster,

the projections 18 on the bolster passing through lsaid recesses orgrooves and the bolster being then lowered to rest on the springs. Themovement of the frame over the bolster is arrested by contact, with thelugs 19 on the sides of the bolster which are preferably cast integraltherewith. Under normal conditions of operating, the side ,framesrestrict the transverse movements of the bolster by contactwith theinside stops 19 or the outside stops 20 arranged in spaced relation ateach side of the bolster.' The 011tside stops 2O are constructed asseparate parts andare held in a definitely spaced relation to the insidestops through direct interlocking with the bolster, preferably withoutthe use of any third part, such as a bolt or rivet,'for maintaining therelation.

The outside stop may have various forms and is'shown as an L-shaped keyadapted to fit with its horizontal farm in the groove 21 in theunderside of the bolster and with its vertical arm between the sideframe and the lug 18 on the bolster. The grooves 21 at their inner endsare provided with recesses or notches for the upturned lugs 22 at theends of the keys vwhich serve to hold the keys in place. The keys arebetween the bolster 4and the springs and are held in place primarily bythe weight or load carried by the bolster and springs. Heretofore,-thekopening 3 in the frame has been wider in its lower portion than inits upper portion to permit it to pass over the outside column lugs ofthe bolster which construction required a relatively long- 4 er springseat member. on the frame. The

relatively shorter length permitted .by the construction herein setforth adds-materially to the strength of the device.

In car trucks of the usual construction, the bolster stops weregenerally not intended to be removed for the convenience of dismantlingthe trucks, but were either cast integral with the bolster or secured tothe same through permanent mechanical means. To facilitate assembling ordisassembling of the trucks, the bolster opening was provided with anenlargement through which the outside bolster guides were free to passafter the side frame and bolster were brought into proper alinement andheight relation with respect to each other by raising the side frame orlowering the bolster. In trucks having the journal boxes integral withthe side frame, it necessitated the removal of springs, spring lank, andcertain brake parts to bring the Eolster into proper relation to theenlarged portion of the bolster opening before the side frame could bewithdrawn.

With my improved construction, the grooves or recesses 17 at the top ofthe bolster opening 3 permit the frame to be passed over the end of thebolster, the projections 18 on the-holster assing through said groovesor recesses. e bolster is lfirst slightly and easily lifted from thesprings to release the keys or stops 20 and permit them to be withdrawn.After withdrawing the stops or keys, the bolster is again lowered torest on the springs, whereupon the spring plank, with the superposedspringsand bolster, is raised suiiiciently to clear the interlockingengagement between the spring plank and the side frame. lThe side framemay then be moved sidewis'e away from the truck with-- out materiallydisturbing the spring plank, springs, or bolster, thereby reducing thecost of replacing wheels or frames and expediting the work.

I-Iavingfully described my invention what I claim as new and desire tosecure by Letters-Patent, is i 1. In a car truck, the combination of aside frame having an opening therethrough to receive a bolster, a groupof springs carried by the side frame in the said opening, a bolsterhaving its end extending through the opening and resting on the springs,a lug on the side of the bolster abutting the inner side of the sideframe, a lug on4 the side of the bolster beyond the outer side of theside frame and a key interlocking with the bolster and engaging betweenthe last-mentioned lug and the outer side of the side frame.

2; In a car truck, the combination of a side Jframe having an openingtherethrough to receive a bolster and provided with a transverse groovein the wall of said opening near the upper end thereof, a group ofsprings carried by the sideframe in the lower end of the opening, abolster having its end supported within the opening by the springs, thebolster being provided with al transverse channel in its. bottomA andwith inner and outer lugs on its side, the outer lug being arranged topass through thetransverse groove Aont the frame and the inner lug toabut the inner side of the side frame, and an L-shaped key engagingsnugly between the outer side of the side frame and the outer lug on thebolster and in the channel `in thebottom of the bolster.

3. In a car truck, the combination of a side frame having an openingtherethrough to re-V ceive a bolster and provided with a transversegroove through the wall of said opening near the upper end thereof, agroup of springs carried by the side frame in the lower end of theopening,` a bolster having its end supported within the opening by thesprings and being provided with a transverse groove in its bottom andwith inner and outer lugs on its side, the outer lug being arranged topass through the transverse groove of the iframe and the inner lug toabut the inner side of the side frame, and key means engaging snuglybetween the outer side of the side frame and the outer lug on thebolster and being held in place by the load carried on the bolster andsprings.

4. In a car truck, the combination of side frames comprising an upperand lower member and columns all cast integral and dening van openingbetween the columns., the columns being provided with transverse groovesin their opposed sides near the upper member, aspring plank resting onthe lower member and interlocking with the frame, springs above thespring plank, a bolster carried by the springs having its end passingthrough the opening, stops on the sides of the bolster adapted to passthrough the grooves in the columns, means cooperating with said stops tolock the frame and bolster lagainst 'displacement of normal relation,said means being movable to an unlocked condition whereby afterdisengaging the spring plank from the frame the latter may be removedleaving the bolster, spring plank and springs relatively intact.

5. In a car truck, the combination of a side frame comprising an upperand lower member and columns, all cast integral and de ining a bolsteropening betweenthe columns, said columns being provided with recesses ony their inner faces and in their upper portion, a spring plank restingon the lower member and interlocking' with the frame, bolster springsabove the spring plank, the bolster being carried bythe springs with itsend passing through the bolster opening, stops integral with the bolsterat the inner side of the columns, stops integral with the bolsterontheouter side of' the columns adapted to pass through the recesses inthe columns when erecting or removing sideframes and occupying aposition below the recesses when in normal operating condition andwhereby the bolster is interlocked with the side frames againstdisplacement of normal relations.

6. In a car truck, the combination of a side no I moscas iframecomprising an upper and lower member, and columns connecting saidmembers, there being a bolster openin between the columns and thecolumns having transverse grooves in their opposed sides near theirupper ends, a spring plank carried by the lower member and interlockingwith therrame, stop elements on the sides of the bolster arranged topass through the transverse grooves in the columns, and meanscooperating with said stop elements and the outer side of the side rameto lock the bolster to the side frame, release oi said means andalinement. of the stop elements with the grooves 1n the columnspermitting withdrawal of the side frame without material disturbance ofthe normal relation between spring plank, springs and bolster.,

Z1 ln a car truck, the combination of a side 'trame having a bolsteropening therethrough, a bolster constructed at its end to pass throughsaid opening,

lxed stops on the sides of the bolster at the outside and the insiderespectively of the frame, and a removable stop outside the framecooperating with the. fixed stop outside of the frame and the side frameto lock the bolster to the side frame, said removable stop interlockingwith tle bolster whereby said stop will be held in ace. P 8. In a cartruck, the combination of a side vframe having a bolster opening, abolster having its end itted in the opening, an integral stop on theside of the bolster to abut one side of the side frame, a secondintegral stop on the side of the bolster at the opposite side of theframe, and a removable stop interlocked with the bolster and against thesecond stop to abut the adjacent side of the side trame.

lin testimony whereof, l have signed this specification.

SEL P. BUSH;

